Patent US1735648A successfully refreshed from Google Patents.
US1735648A
Expired / Lapsed
US
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Magnetic clutch
Assignee: SAND SPUN PATENTS Corp
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Filing: 1927-10-07
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Granted: 1929-11-12
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Expires: 1947-10-07
Abstract
No abstract record available.
Inventors
- 👤 William D Moore
- 👤 Clarence D Barr
- 👤 James W Moore
- 👤 William J Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:23
CPC Classifications
B; B22; B22D; B22D13/00; B22D13/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1932-11-11 | 1933-05-13 | 1933-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-11-11 | 1937-05-13 | 1937-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-11-11 | 1941-05-13 | 1941-11-12 | $7700.00 | Window Closed / Lapsed |